wip better file support and word wrap

MainContext.md

@@ -90,6 +90,15 @@ Is a local GUI tool for manually curating and sending context to AI APIs. It agg
 - Rejections return `"USER REJECTED: command was not executed"` to the AI
 - All tool calls (script + result/rejection) are appended to `_tool_log` and displayed in the Tool Calls panel
 
+**Dynamic file context refresh (ai_client.py):**
+- After every tool call round, all project files from `file_items` are re-read from disk via `_reread_file_items()`
+- For Anthropic: the refreshed file contents are injected as a `text` block appended to the `tool_results` user message, prefixed with `[FILES UPDATED]` and an instruction not to re-read them
+- For Gemini: files are re-read (updating the `file_items` list in place) but cannot be injected into tool results due to Gemini's structured function response format
+- `_build_file_context_text(file_items)` formats the refreshed files as markdown code blocks (same format as the original context)
+- The `tool_result_send` comms log entry filters out the injected text block (only logs actual `tool_result` entries) to keep the comms panel clean
+- `file_items` flows from `aggregate.build_file_items()` → `gui.py` `self.last_file_items` → `ai_client.send(file_items=...)` → `_send_anthropic(file_items=...)` / `_send_gemini(file_items=...)`
+- System prompt updated to tell the AI: "the user's context files are automatically refreshed after every tool call, so you do NOT need to re-read files that are already provided in the <context> block"
+
 **Anthropic bug fixes applied (session history):**
 - Bug 1: SDK ContentBlock objects now converted to plain dicts via `_content_block_to_dict()` before storing in `_anthropic_history`; prevents re-serialisation failures on subsequent tool-use rounds
 - Bug 2: `_repair_anthropic_history` simplified to dict-only path since history always contains dicts